Table 2.
Comparison | Subcutaneous adipose tissue | Visceral adipose tissue |
---|---|---|
Morphology (H&E stain)a | ||
Function | Regulates whole body energy metabolism | Regulates whole body energy metabolism |
Stores and/or releases lipids during feeding and fasting | Stores and/or releases lipids during feeding and fasting | |
Secretes various adipokines and chemokines—acts as endocrine organ | Secretes various adipokines and chemokines—acts as endocrine organ | |
Composition | Adipocytes, endothelial cells, macrophages, immune cells, fibroblasts, etc. | Adipocytes, endothelial cells, macrophages, immune cells, fibroblasts, etc. |
Inflammation | Less inflamed | Increased macrophage infiltration |
Chronic inflammation | ||
TNFα, IL-6, CCL2, and PAI-1 ↑ | ||
Adipokines | Adiponectin ↑ | Adiponectin ↓ |
Leptin ↑ | Leptin ↑ | |
Insulin signals | Sensitive | Resistance |
Hypertrophy | Healthy expansion | Increase adipocyte apoptosis/necrosis |
Fibrosis | Fibrogenic properties of preadipocytes ↑ (194) | Less fibrotic preadipocytes |
H&E, Hematoxylin and eosin.
Scale bars, 100 μm.